1. Electrochemical / Fuel Cell Sensor: The fuel cell is a porous disk with a thin layer of platinum black on both faces and any alcohol that comes in contact with the cell's surface is broken down chemically. For each molecule of alcohol that is broken down a given number of electrons are freed during the process. The numbers of electrons generated are in proportion to the amount of alcohol.

2. Built-in /detachableWireless Printer: Can be detached from alcohol analyzer and become a stand alone wireless printer.